I was introduced to Malcom Davis Shino just this last semester and witnessed the results that people are describing here with the wax resist. I noted that someone mentioned a fast-paced: glaze, apply resist and then immediately-into-the-kiln. process We did some experimenting, comparing pots with Malcolm Davis Shino where some (after applying the glaze and the wax resist) were allowed to dry for a couple of weeks, in contrast with other pots that went directly into the kiln right after the glaze/wax treatment. Side-by-side in the kiln, there were more dramatic effects on the pots that were allowed to air dry over a longer period.
Is it possible that the longer drying period allow the soda to migrate and concentrate more around the wax?
By the by, I have never been a great shino fan...until now,